[Mobhack]

As we say in the readme for each patch, you should finish off any ongoing PBEM game before applying the patch. OOBs change from patch to patch, so any anti-cheater security check on a now-modified PBEM OOB would then likely cause a security failure.

An ongoing campaign or any other non-PBEM save game should be no problem to apply patch upgrades to. (The only campaign I had problems with was a WW2 one, where I had made a special debug unit, and had used them for test in an ongoing campaign, on deploying the latest patch these were of course blank units once more! - solution was to change these to something else at the upgrade point, and continue on with the LC.)

Cheers
Andy